Police take samples from Lincolnshire lake after mustard gas canister discovery
Police have confirmed they're taking water samples from a lake in Lincolnshire - following the discovery of poisonous mustard gas canisters in nearby woodland.
There's been a military presence near Stixwould Lake near Woodhall Spa after the find at Roughton Woods on Sunday.
Two people needed hospital treatment for minor burns after uncovering them.
Three people arrested following the discovery have since been bailed.